For example, Mr. DeMarco states that "working families are now guaranteed that health insurance will cover doctors' visits and prescriptions and preventive care."

What he doesn't say, however, is that many of the tens of thousands of Maryland policies that are being canceled by Obamacare already cover doctors' visits, prescriptions and preventive care.

Mr. DeMarco also says that "women now know that pregnancy is covered, and not potentially considered a 'pre-existing condition' that could threaten their ability to get coverage."

What Mr. DeMarco knows but won't say is that Marylanders have had access to the Maryland Health Insurance Plan and that no Maryland resident has gone without health insurance because she is pregnant.

Mr. DeMarco also says that "seniors can now get the financial help they need to pay for their care." What he doesn't say is that this is a meaningless statement because health insurance plans have always helped seniors — as well as everyone else — pay for their care.

If Mr. DeMarco were truly confident of the benefits of Obamacare, he would have by now found an honorable way to promote its implementation. He hasn't.